Yuri Moriyama, an office worker, is happily married to her boyfriend of five years. However, she is thrown into the depths of unhappiness when she discovers that he had an affair with a junior colleague of Yuri's. Unable to contain her anger toward her ex-lover, Yuri goes to a park and gets drunk. She gets tangled up with some bad guys and is saved by a blonde-haired delinquent named Shoa, who actually lives in the same apartment. In fact, Shoa lives in the same apartment building as Yuri, but his mother is in the hospital and he is not eating well.